The aggressive advertising, with the slogan "There's a Reason", warned against the alleged dangers of coffee and caffeine, and promoted the benefits of Postum.

When imitations appeared, the company introduced a cheaper drink called Monk's Brew that was identical to Postum, but discontinued it after competitors left the market.

[15] As of January 2013, Eliza's Quest Food succeeded in returning Postum to many grocery stores across the United States and Canada.

[16] In "All by Herself", episode 14, season 5 of The Facts of Life, Mrs. Garrett offers the girls a nice, piping hot cup of Postum.

In "The Pez Dispenser", episode 14, season 3 of Seinfeld, George and Jerry briefly discuss how Postum is underrated as a drink.